Energy drink maker Celsius is paying $1.8 billion to buy rival Alani Nu, a brand that has been propelled by social-media influencers and pitches itself as a low-cal fitness aid.

Celsius Holdings said on Thursday it would buy health and wellness drinks brand Alani Nutrition in a $1.8 billion deal through a combination of cash and stock, boosting its portfolio to build on the growing demand for sports and energy beverages.

The purchase price consideration comprises $1,275 million of cash and a $25 million earn-out and $500 million (or approximately 22.5 million shares) of newly issued restricted shares of Celsius Holdings common stock,